class MyMessage(object):
    """
    message type definition
    """

    # connection info
    MSG_TYPE_CONNECTION_IS_READY = 0

    # server to client
    MSG_TYPE_S2C_INIT_CONFIG = 1
    MSG_TYPE_S2C_SYNC_MODEL_TO_CLIENT = 2
    MSG_TYPE_S2C_CHECK_CLIENT_STATUS = 6
    MSG_TYPE_S2C_FINISH = 7

    # client to server
    MSG_TYPE_C2S_SEND_MODEL_TO_SERVER = 3
    MSG_TYPE_C2S_SEND_STATS_TO_SERVER = 4
    MSG_TYPE_C2S_CLIENT_STATUS = 5
    MSG_TYPE_C2S_FINISHED = 8

    MSG_ARG_KEY_TYPE = "msg_type"
    MSG_ARG_KEY_SENDER = "sender"
    MSG_ARG_KEY_RECEIVER = "receiver"

    """
        message payload keywords definition
    """
    MSG_ARG_KEY_NUM_SAMPLES = "num_samples"
    MSG_ARG_KEY_MODEL_PARAMS = "model_params"
    MSG_ARG_KEY_MODEL_PARAMS_URL = "model_params_url"
    MSG_ARG_KEY_MODEL_PARAMS_KEY = "model_params_key"
    MSG_ARG_KEY_CLIENT_INDEX = "client_idx"

    MSG_ARG_KEY_TRAIN_CORRECT = "train_correct"
    MSG_ARG_KEY_TRAIN_ERROR = "train_error"
    MSG_ARG_KEY_TRAIN_NUM = "train_num_sample"

    MSG_ARG_KEY_TEST_CORRECT = "test_correct"
    MSG_ARG_KEY_TEST_ERROR = "test_error"
    MSG_ARG_KEY_TEST_NUM = "test_num_sample"

    MSG_ARG_KEY_CLIENT_STATUS = "client_status"
    MSG_ARG_KEY_CLIENT_OS = "client_os"

    MSG_ARG_KEY_EVENT_NAME = "event_name"
    MSG_ARG_KEY_EVENT_VALUE = "event_value"
    MSG_ARG_KEY_EVENT_MSG = "event_msg"

    """
        MLOps related message 
    """
    # Client Status
    MSG_MLOPS_CLIENT_STATUS_IDLE = "IDLE"
    MSG_MLOPS_CLIENT_STATUS_UPGRADING = "UPGRADING"
    MSG_MLOPS_CLIENT_STATUS_INITIALIZING = "INITIALIZING"
    MSG_MLOPS_CLIENT_STATUS_TRAINING = "TRAINING"
    MSG_MLOPS_CLIENT_STATUS_STOPPING = "STOPPING"
    MSG_MLOPS_CLIENT_STATUS_FINISHED = "FINISHED"

    # Server Status
    MSG_MLOPS_SERVER_STATUS_IDLE = "IDLE"
    MSG_MLOPS_SERVER_STATUS_STARTING = "STARTING"
    MSG_MLOPS_SERVER_STATUS_RUNNING = "RUNNING"
    MSG_MLOPS_SERVER_STATUS_STOPPING = "STOPPING"
    MSG_MLOPS_SERVER_STATUS_KILLED = "KILLED"
    MSG_MLOPS_SERVER_STATUS_FAILED = "FAILED"
    MSG_MLOPS_SERVER_STATUS_FINISHED = "FINISHED"

    # Client OS
    MSG_CLIENT_OS_ANDROID = "android"
    MSG_CLIENT_OS_IOS = "iOS"
    MSG_CLIENT_OS_Linux = "linux"
